Immune Cell Populations in the Endometrium
Recruiting now
Conditions studied: Infertility, Female, Recurrent Miscarriage, Gynecologic Disease
In brief
Specialized immunological studies in the diagnostics of idiopathic infertility and recurrent miscarriages have limited applicability, as the role of the immune system in these conditions is not thoroughly understood. In ovulatory cycles, changes occur in the populations of uterine lymphocytes, which may influence the receptivity of the endometrium and the implantation of the embryo. Particularly notable are the changes in natural killer (NK) cells, which reach their peak during the luteal phase and regulate the invasion of the trophoblast. The dominant NK cells exhibit a CD56bright phenotype and differ in cytokine profiles from peripheral blood cells. Cyclical changes also affect macrophages and T lymphocytes; however, it is unclear whether their proportions differ in women with reduced fertility. There is a need to investigate how the composition of lymphocytes in blood influences the populations in the endometrium. The aim of this study is to analyze the correlation between peripheral and endometrial lymphocytes in women with idiopathic infertility and recurrent miscarriages, compared to fertile women.
Key facts
- Study ID
- NCT06826365
- Run by
- Jagiellonian University
- People needed
- 50
- Starts
- 2025-07-01
- Expected to finish
- 2026-06-30
- Last updated by the study team
- 2026-03-19
Who can join
Age: 18 and older, up to 45. Sex: female. Healthy volunteers: not accepted.
You may qualify if…
- age 18-45 years
- idiopathic infertility
- at least 2 miscarriages
- other benign gynecological conditions subjected to endometrial sampling
You may not qualify if…
- miscarriage within last 3 months
- abdominal/uterine surgery within last 3 months
- viral/bacterial infection within last 3 months
- antibiotic therapy within last 3 months
Where it is running
- Jagiellonian Univeristy — Krakow, Poland (enrolling)
Full record on ClinicalTrials.gov
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